The explicit form of the coupling function
does not appear for be important for the existence of scalarized solutions (although it impacts on their properties),
as long as the conditions discussed above
are satisfied.
For example, the results in [1]}
are found for
\(f(\phi )= \phi ^2\) ,
while Ref.
[2]},
considers a coupling function
\(f(\phi )= 1-e^{-6\phi ^2}\) .
